Mounting devices for electron tubes and associated circuit components



March 10, 1959 P. GIUFFRIDA 2,877,438 MOUNTING DEVICES FOR ELECTRON TUBES AND ASSOCIATED CIRCUIT COMPONENTS Filed May 22, 1953 lNVE'NTOR PHIL L /P GIUF F R/DA A TTOR/VEY nited. L's/saws Pa MOUNTING DEVICES FOR ELECTRON TUBES AND ASSOCIATED CIRCUIT COMPONENTS Application May 22, 1953, Serial No. 356,785

4 Claims. (Cl. 339-125) This invention relates to a mounting device for an electron tube on or around which may be mounted various resistors, capacitors, inductors, transformers or other circuit components, particularly those which are closely related to the electron tube which fits the mounting device.

The objects of this invention include:

First, to provide a structure of this character which reduces to a minimum the length of the leads between circuit components, thus reducing stray wiring capacitance which might otherwise have a detrimental effect on the electronic circuit involved, particularly at high frequencies;

Second, to provide a structure of this character wherein the various components associated with a given vacuum tube form a unitary sub-assembly which may be readily installed or removed and which requires a mini mum of electrical connection with other such subassemblies to produce a complete electronic device, thereby providing a structure which materially simplifies the manufacture of electronic devices as well as their servic Third, to provide a structure of this character in which all the soldering of the circuit components may be accomplished by means of dip-soldering operations, thus effecting an important saving in the manufacture of such subassemblies.

According to this invention, a mounting device in the form of a cup having a rim is provided with a tube socket body at the bottom of the cup. Separately insulated terminal elements are mounted on the tube socket body and the rim respectively. Circuit components may be mounted between any two suitable terminal elements, and an electron tube may be fitted inside the cup onto the tube socket body.

Other and incidental objects of this invention will be apparent to those skilled in the art from a reading of the following specification and an inspection of the accompanying drawings in which:

Figure 1 is a front view of one embodiment of the present invention;

Figure 2 is a top view of the embodiment shown in Figure 1;

Figure 3 is a front view of another embodiment of the present invention designed to be plugged onto a chassis; and

Figure 4 is a top view of the embodiment shown in Figure 3.

Referring now to Figures 1 and 2, there is shown a hollow cylindrical cup 11 having a rim 13 which flares outwardly. A standard tube socket body 15 is located at the bottom of cup 11. This tube socket body 15 is provided with a central bore 16 and a ring of openings 17 which receive metallic socket elements. These socket elements terminate in terminal elements such as tongues or lugs 19 and 21 which protrude from the bottom side event, both the rim 13 and the of the socket body 15. The rim 13, which may be circular, is provided with a set of separately insulated terminal elements such as 23. Terminal elements 23 are shown as short sections of metallic tubing which go through and are riveted to rim 13. They may also'take the form of small metallic posts secured to the rim 13 and around which the leads from the components may be attached.

The cup 11, rim 13 and socket body 15.may be molded in one piece of insulating material, so as to constitute a simple part whose manufacturing cost is very low. In any socket body 15 should be made of insulating material in order to provide separate insulation of the terminal elements with which the rim 13 and the socket 15 are provide Circuit components may be mounted on or around applicants mounting device, as shown in Figure 1. They may be mounted between the terminal elements of the tube socket and that of the rim 13. Capacitor 25 and resistors 27 and 29 are so mounted. Or they may be mounted like resistor 31 between two terminal elements 23 of the rim 13. Capacitor 25 and resistors 27, 29 and 31 are only a few of the many circuit components that may be mounted on applicants device and have been shown only to illustrate how they may be mounted.

To mount capacitor 25 upon applicants device, its lead 33 is inserted in the hole of lug 19in a conventional way, and its lead 35 is inserted through one of the hollow terminal elements 23. It is desirable to cut lead 35 so that its end is approximately flush with the top of terminal element 23. Terminal element 23 may then be squeezed with a pair of pliers to hold mechanically lead 35. When all the components are mounted in a similar way, the socket and rim terminal elements may be dipped into liquid solder.

An electron tube 37 is mounted in a conventional manner on the socket body 15 so that it engages and extends from the top side of said body. The sub-assembly thus formed may be mounted on a chassis by means of a screw 41 engaging through a hole 43 in the rim 13. A nut 45 and an insulating spacer 47 secure the sub-assembly to chassis 39. A hole is provided in the chassis 39 to enable the tube 37 to protrude therethrough.

The embodiment illustrated in Figures 3 and 4 is similar to that shown in Figures 1 and 2 except that rim 13 is square instead of circular, and that rim 13 is provided with conventional plugs 49 which are adapted to engage into jacks 51 mounted upon the chassis 39. The plugs 49 are provided with lugs 53 from which input and output connections to the subassembly may be made; and the jacks 51 are provided with lugs 55 from which input and output connections from other sub-assemblies may be made.

I claim:

1. A mounting device for connecting leads and circuit components to the element of an electronic tube, comprising a cup having a flanged rim, a tube socket at the bottom of said cup, the face of said tube socket being parallel to the flanged part of said rim, said socket having a set of terminal elements projecting from the bottom of said cup, and another set of separately insulated terminal elements perpendicular to and mounted upon the flanged part of said rim.

2. A mounting device according to claim 1 wherein the terminal elements mounted upon said rim are sections of metallic tubing attached to said rim.

3. A mounting device for connecting leads and circuit components to the element of an electronic tube, comprising a cup having a rim located at the top of said cup and having a flanged part flaring outwardly, a tube socket at the bottom of said cup, the face of said tube socket essence beingparallei to the flanged; part of said rim, said socket hevinga 'set o'f'terminal elements projectingfrom the bottom of said cup, and another set of separately insulated terminal elements perpendicular to and mounted upon the fi'anged part of said rim.

4. A mounting device for connecting leads and circuit componentsto the element of an electronic tube, comprising a cup having a flanged rim, :1 tube socket at the bottom of said cup, the face of said tube socket being parallel to thefianged part of said rim,said socket having aset 'ofterminal elements projecting from the bottom of said cup, another set of separately insulated terminal elements perpendicular to and mounted upon the flanged part of said rim, and means on said rim to secure said mounting device to a chassis.

UNITED STATES PATENTS 1,850,583 Gage Mar. 22, 1932 2,323,628 Smith July 6, 1943 2,325,325 Baumbach Aug. 2, 1943 2,377,893 Lorenzen June 12, 1945 2,531,085 Stacey Nov. 21, 1950 2,637,763 Palmer May 5, 1953 2,647,990 Peterson Aug. 4, 1953 2,717,366 Summerer Sept. 6, 1955 2,723,384 Lang "Nov. 8, 1955 FOREIGN PATENTS Great Britain July 11, 1949 

